12 psi should see close to 700 but the auto is gonna eat a good but of power plus on a 416 you should have a F1 series Procharger to get the best out of your setup.

Quote:

Originally Posted by Alvin@PCMofNC

Have you bought the blower yet? If it was me I would skip to a F-1R. A D1 will be limited to about 750-maybe 800ish on that setup and while that might be too much now you'll grow in to it. A upgrade now is a lot cheaper than a upgrade later.